TEST ACTION APPLICABILITY
2 Turn the ignition off.
With the DRBIIIt lab scope probe and the Miller special tool #6801, back probe the
(K24) CKP signal circuit in the CKP harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap the Crankshaft Position Sensor.
Observe the lab scope screen.
Start the engine.
Allow the engine to idle.
Observe the lab scope screen.
Did the CKP Sensor generate any erratic pulses?
All
Yes → Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 3
3 Turn the ignition off.
With the DRBIIIt lab scope probe and the Miller special tool #6801, backprobe the
(K44) CMP Signal circuit in the CMP harness connector.
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Ignition on, engine not running.
Wiggle the related wire harness and lightly tap on the Camshaft Position Sensor.
Observe the lab scope screen.
Start the engine.
Allow the engine to idle.
Observe the lab scope screen.
Did the CMP Sensor generate any erratic pulses?
All
Yes → Repair as necessary.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Test Complete.
4 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K7) 5 Volt Supply circuit in the CMP Sensor harness
connector.
Is the voltage between 4.5 and 5.5 volts?
All
Yes → Go To 5
No → Go To 13
5 Turn the ignition off.
Disconnect the CMP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage of the (K44) CMP Signal circuit in the CMP Sensor harness
connector.
Is the voltage between 4.5 and 5.0 volts?
All
Yes → Go To 6
No → Go To 8
145
DRIVEABILITY - NGC
P0340-CAMSHAFT POSITION SENSOR CIRCUIT — Continued
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